ROLEX REF. 16718 GMT-MASTER II YELLOW GOLD
Rolex, "Oyster Perpetual Date, GMT-Master II, Superlative
Chronometer, Officially Certified," Ref. 16718/16710, case No.
R986050. Made in 1988.
Fine center seconds, self-winding, water-resistant, two time zone,
18K yellow gold Chronometer wristwatch with special brown
24-hour bezel and hand, independently adjustable hour hand and
an 18K yellow gold riveted Rolex Oyster bracelet.
Three-body, solid, polished and brushed, screwed-down case
back and protected winding-crown, graduated revolving brown
bezel for the diurnal and nocturnal hours of the second time zone
in 24 hours, sapphire crystal with cyclops lens.
Brown with applied luminous round, bâton and triangular indexes,
aperture for the date. Luminous yellow gold skeleton hands,
independently adjustable hour hand.
Cal. 3185, rhodium-plated, 31 jewels adjusted to temperatures
and 5 positions, straight-line lever escapement, monometallic balance,
shock absorber, self-compensating Breguet balance spring,
Microstella regulating screws, hack mechanism.